Nevada Department of Transportation—Cave Rock Tunnel Extension and Stormwater Enhancements

After heavy rain loosened huge boulders from the face of the Cave Rock tunnels near Lake Tahoe, Nevada DOT sprang into action to keep motorists safe. For this $6 million project, NDOT constructed a tunnel extension with a flat top filled with sand, allowing any falling rocks to nest naturally in that sand instead of falling onto the roadway. While they were at it, the department also installed new tunnel lighting and automatic signs for the protection of bicyclists and other recreational travelers. Through the process, NDOT worked with the local planning agency to preserve the environment around Lake Tahoe and the Washoe Tribe to protect the sacred significance of Cave Rock.Cave Rock May 2015 pre -construction. notice precrious rocks.JPG